Mercedes-Benz B-class W246 facelift (2014-2018) yel/blu Wiring diagrams

BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE C SIG CAN B H CAN B L COMPUTER DATA LINES SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, INTERIOR LIGHTS, ANTI-THEFT SYSTEMS EXTERIOR LIGHTS, HEADLIGHTS SYSTEMS FUSE 26 FUSE 98 GRN WIRE GRN/BRN WIRE GRN/PNK WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/ORG WIRE GRY/PNK WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM INTERIOR LIGHTS, POWER WINDOWS SYSTEMS MEMORY SYSTEMS MOT- ORG/ WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/WHT WIRE ORG/YEL WIRE PNK/BLU WIRE PNK/WHT WIRE PNK/YEL WIRE POWER DISTRIBUTION SYSTEM POWER WINDOWS SYSTEM RED WIRE RED/WHT WIRE RED/YEL WIRE S SIG SAM CONTROL UNIT (LEFT END OF DASH) SIG STARTING/CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TFH O TFH S TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS, DOOR LOCKS SYSTEMS TRUNK, TAILGATE, FUEL DOORS, INTERIOR LIGHTS SYSTEMS VEHICLE INTERIOR FUSE BOX VIO WIRE VIO/BLU WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/RED WIRE WHT/YEL WIRE WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

30 AB 30 FH 30 IB SRA AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/ORG WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CENTER ENGINE HOOD CONTACT SWITCH CLA CLASS COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM ELV SIG ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS, HEADLIGHTS SYSTEMS FRA-L FRA-R FRONT ELECTRICAL PREFUSE BOX FUSE 236 FUSE 25 FUSE 4 FUSE 79 FUSE 80 GLA CLASS GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HORN RLY HORNS SYSTEM HOT AT ALL TIMES I/P INSTRUMENT CLUSTER SYSTEM LIN 1 MOT- ORG/BLU WIRE PLTFL L (+) SIG PLTFL L (+) UPLTFL R PLTFL R (+) GND SIG POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SAM CONTROL UNIT (LEFT END OF DASH) SIG SIG (1) SIG (2) SIG 3 SSK START STARTING/CHARGING SYSTEM UPLTFL L (+) VEHICLE INTERIOR FUSE BOX VIO WIRE VIO/WHT WIRE W/ XENON HEADLAMPS W/O XENON HEADLAMPS WHT WIRE WHT/BLK WIRE WHT/RED WIRE WIPER/WASHER SYSTEM WMV A/D WMV PP WSA YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN A H CAN A L PNK ETH (+) WIRE CAN B L COMAND CONTROL UNIT COMAND FAN MOTOR COMPUTER DATA LINES SYSTEM DIAG CAN B H DIAGNOSTIC CONNECTOR ETH (-) ETH WS FUSE 42 FUSE 49 GRN WIRE GRY WIRE GRY/YEL WIRE HANDS-FREE SYSTEM MICROPHONE HOT W/ CIRCUIT LEFT FRONT DOOR SPEAKER LEFT MIRROR TRIANGLE TWEETER LEFT REAR DOOR SPEAKER LVDS MF (-) MOBILE PHONE CONTACT PLATE MOST DATA BUS CIRCUIT MOST IN MOST OUT MOST WS NCA WIRE ORG/ WIRE ORG/YEL WIRE PNK AS (+) WIRE PNK WIRE RED WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT DOOR SPEAKER RIGHT MIRROR TRIANGLE TWEETER SHIELD SHIELD LVDS (+) TEL ST TEL WS V SIG VEHICLE INTERIOR FUSE BOX VIO WIRE W/O SOUND SYSTEM WHT WIRE YEL/BLU WIRE

ACCEPT/ TERMINATE PHONE CALL BUTTON AUDIO/COMAND CONTROL PANEL AUDIO/COMAND CONTROLLER AUDIO/COMAND DISPLAY BACK BUTTON BACK, VOICE CONTROL SYSTEM OFF BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/PNK WIRE BRN/WHT WIRE BUTTON +, - FOR SETTING SPECIFIC FUNCTIONS, VOLUME CONTROL CAN A H CAN A L CAN E H CAN E L COMPUTER DATA LINES SYSTEM DELETE BUTTON FUSE 104 FUSE 33 FUSE 37 GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRY/BLU WIRE HOT W/ CIRCUIT LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LVDS MUTE FUNCTION BUTTON NCA WIRE OK BUTTON ORG/ WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RESET, BACK BUTTON RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP RIGHT REAR DOOR SPEAKER SCROLL FORWARD/ BACK BUTTON SHIELD SIG SIG PNK SIG WIRE STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL CLOCK SPRING CONTACT STEERING WHEEL ELECTRONICS SYSTEM SELECTION BUTTON VEHICLE INTERIOR FUSE BOX VOICE CONTROL SYSTEM ON BUTTON W/O SOUND SYSTEM YEL WIRE YEL/BLU WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE DEDICATED SHORT-RANGE COMMUNICATIONS CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT ETC/DSRC ANTENNA GRN WIRE HSD MF (-) MULTIMEDIA CONNECTION UNIT NCA WIRE ORG/ WIRE RED/BLU WIRE SHIELD TEL ST TELEMATICS SERVICES COMMUNICATION MODULE USB D- USB GND USB SPLITTER YEL/BLU WIRE

BATTERY COOLANT PUMP SWITCHOVER VALVE BATTERY COOLING SYSTEM COOLANT PUMP 1 BATTERY COOLING SYSTEM COOLANT PUMP 2 BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L CAN EL H CAN EL L COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR DOWNSTREAM OF HIGH-VOLTAGE BATTERY COOLANT TEMPERATURE SENSOR UPSTREAM OF HIGH-VOLTAGE BATTERY DRIVE COOLANT TEMPERATURE SENSOR DRIVETRAIN CONTROL UNIT ELECTRIC DRIVE, CHARGER COOLANT PUMP ENGINE COMPARTMENT FUSE, RELAY MODULE FRONT ELECTRICAL PREFUSE BOX FUSE 208 FUSE 212 FUSE 213 FUSE 214 FUSE 5 FUSE 98 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ TERMINAL INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PWM RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SAM CONTROL UNIT (LEFT END OF DASH) SIG THERMAL MANAGEMENT CONTROL UNIT VEHICLE INTERIOR FUSE BOX WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE

30 FH BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMBINATION SWITCH COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DECOUPLING RELAY EXTERIOR LIGHTS SWITCH FRONT ELECTRICAL PREFUSE BOX FRONT FOG LAMP INDICATOR LAMP FUSE 4 FUSE 89 GRN WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HEADLAMP RANGE CONTROLLER HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED INNER LEFT REAR LAMP UNIT INSTRUMENT CLUSTER LEFT DAYTIME RUNNING LAMPS HEADLAMP LEFT FOG LAMP LEFT REAR FOG LAMP LOW BEAM INDICATOR LAMP LOW BEAM SWITCH ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT RAIN/LIGHT SENSOR (W/ RAIN SENSOR) LIGHT SENSOR (W/O RAIN SENSOR) REAR FOG LAMP BUTTON REAR FOG LAMP INDICATOR LAMP RED/YEL WIRE RIGHT DAYTIME RUNNING LAMPS HEADLAMP RIGHT FOG LAMP SAM CONTROL UNIT (LEFT END OF DASH) STEERING COLUMN MODULE CONTROL UNIT SWITCH ILLUMINATION SYSTEM VEHICLE INTERIOR FUSE BOX YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FRA-R FRONT FOG LAMP BUTTON FUSE 229 FUSE 231 FUSE 232 FUSE 236 FUSE 89 GRN WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED ILLUMINATION SWITCH LEFT ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR LEFT FRONT EXTERIOR LIGHT LED ACTUATION MODULE LEFT FRONT LAMP UNIT LEFT HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR LEFT LIGHT DISTRIBUTION ACTUATOR MOTOR LEFT XENON BULB W/ INTEGRATED IGNITION MODULE LEFT XENON LIGHT POWER SUPPLY MODULE LOW BEAM SWITCH ORG/BLK WIRE ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT RAIN/LIGHT SENSOR (W/ RAIN SENSOR) LIGHT SENSOR (W/O RAIN SENSOR) REAR FOG LAMP BUTTON RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR RIGHT FRONT EXTERIOR LIGHT LED ACTUATION MODULE RIGHT FRONT LAMP UNIT RIGHT HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR RIGHT LIGHT DISTRIBUTION ACTUATOR MOTOR RIGHT XENON BULB W/ INTEGRATED IGNITION MODULE RIGHT XENON LIGHT POWER SUPPLY MODULE SAM CONTROL UNIT (LEFT END OF DASH) SIG STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) UPLTFL L (+) UPLTFL R (+) VEHICLE INTERIOR FUSE BOX WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

ABL L ABL R BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN E H CAN E L CAN-G H CAN-G L COMPUTER DATA LINES SYSTEM FRONT AXLE LEVEL SENSOR (BI-XENON HEADLAMP) (IN FRONT RIGHT WHEELWELL) FRONT FOG LAMP INDICATOR LAMP GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE HEADLAMP CONTROL UNIT (UPPER RIGHT FOOTWELL) HIGH BEAM INDICATOR LAMP INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT INSTRUMENT CLUSTER LEFT FOG LAMP LEFT REAR FOG LAMP LOW BEAM INDICATOR LAMP ORG/BLK WIRE REAR AXLE LEVEL SENSOR REAR FOG LAMP INDICATOR LAMP RED/GRN WIRE RED/WHT WIRE RIGHT FOG LAMP RIGHT REAR FOG LAMP SIG WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE

ACOUSTIC TURN SIGNAL LIGHT FUNCTION CHECK ANTI-LOCK BRAKE SYSTEM INDICATOR LAMP BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/ORG WIRE BLU/VIO WIRE BLU/WHT WIRE BRAKE SYSTEM WARNING LAMP BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CLA, GLA-CLASS B-CLASS COLLISION PREVENTION ASSIST WARNING LAMP COMPUTER DATA COMPUTER DATA LINES SYSTEM COOLANT EXPANSION RESERVOIR FILL LEVEL SENSOR (DUAL CHAMBER) COOLANT LEVEL SWITCH COOLANT TEMPERATURE GAUGE COOLANT TEMPERATURE WARNING LAMP DISTRONIC WARNING LAMP ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRONIC STABILITY PROGRAM WARNING LAMP ENGINE DIAGNOSIS INDICATOR LAMP ESP/ASR OFF WARNING LAMP FRONT FOG LAMP INDICATOR LAMP FUEL LEVEL INDICATOR GAUGE FUEL RESERVE INDICATOR LAMP FUSE 73 FUSE 84 FUSE 88 GEAR INDICATOR (PRND) GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT ILLUMINATION INSTRUMENT ILLUMINATION BRIGHTNESS CONTROL LEFT TURN SIGNAL IND LAMP LIN 1 LINES SYSTEM LOW BEAM INDICATOR LAMP MULTI-FUNCTION DISPLAY NCA WIRE ORG/BLU WIRE OUTSIDE TEMPERATURE SENSOR PARKING BRAKE INDICATOR LAMP POWER DISPLAY POWER INDICATOR REAR FOG LAMP INDICATOR LAMP RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT TURN SIGNAL IND LAMP SAM CONTROL UNIT (LEFT END OF DASH) SEAT BELT WARNING LAMP SIG SPEEDOMETER STANDING LAMPS INDICATOR LAMP SUPPLEMENTAL RESTRAINT SYSTEM INDICATOR LAMP SW 1 SW 3 SW 4 SW 6 TACHOMETER TIRE PRESSURE MONITOR WARNING LAMP TRANSMISSION MODE DISPLAY VEHICLE INTERIOR FUSE BOX W/ 4 MATIC W/O 4 MATIC W/ DISTRONIC PLUS YEL/BLU WIRE